In this harrowing true-life adventure, journalist Zuckoff (Lost in Shangri-La) follows the crew of an American B-17 bomber that crash-landed in 1942—while searching for another downed plane—on a vast glacier in the Greenland ice cap, one of the most isolated and inhospitable places on earth. With little food or cold-weather gear and an assortment of nasty injuries, the nine airmen found themselves trapped in a field of hidden, ever-shifting crevasses that threatened to swallow up their plane and made hiking even a few yards a mortal danger. Zuckoff juxtaposes their months-long battle against hurricane-blizzards, starvation, frost-bite, gangrene and madness with equally perilous rescue attempts by sled teams and military aviators flying through gales and white-outs. (His tense first-hand account of a 2012 expedition to locate the remains of one of those rescue flights buried in 30-foot-deep ice frames the story.) Zuckoff’s gripping narrative unfolds with immediacy and verve as men in fetid snow caves and sputtering aircraft pit their dogged camaraderie and desperate, white-knuckle improvisations against the fury of an Arctic winter. Photos. (May)